Dong Xu is Chair in Computer Engineering at the School of Electrical and Information Engineering, The University of Sydney, Australia. While pursuing the PhD degree, he worked at Microsoft Research Asia and The Chinese University of Hong Kong for more than two years. He also worked as a postdoctoral research scientist at Columbia University from 2006 to 2007 and a faculty member at Nanyang Technological University from 2007 to 2015.

His current research interests include computer vision, multimedia, machine learning and biomedical image analysis. His group has developed new machine learning methods for various vision and big data analytics related applications including Internet vision and social media (i.e., large scale image/video retrieval, visual recognition using massive Web data), biometrics (i.e., face recognition and tagging, human gait recognition and person re-identification), video analysis and medical image analysis. He has published more than 100 papers in IEEE Transactions and top tier conferences including CVPR, ICCV, ECCV, ICML, ACM MM and MICCAI. His co-authored work (with his former PhD student Lixin Duan) received the Best Student Paper Award in IEEE International Conference on Computer Vision and Pattern Recognition (CVPR) in 2010. His coauthored work (with his former PhD student Lin Chen) won the IEEE Transactions on Multimedia Prize Paper Award in 2014. When working at Nanyang Technological University, he received several research projects from Singapore National Research Foundation, A*STAR, Singapore Ministry of Education, Microsoft Research Asia and Rolls-Royce Plc.